Correct end links?

I had my watch stolen and luckily found another of the same reference and purchased it. I love this watch and wear it daily. Lately I have been thinking the end links are not the correct ones for this watch. They seem too rounded for such a sharp integrated bracelet.

I believe the reference number to be 166.0125 bracelet says 1286/249. The end links match pictures of what Ive seen to be 249 end links but mine looks just a tad different. Any thoughts on this??